Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
Technical Paper
Verification Test Results of 50 t/d O2/CO2-blown Two-stage Entrained Flow Coal Gasifier and Development into Commercial Scale Gasifier
Hiromi ISHII Hiroaki TADARyuhei TAKASHIMAJyun-ichiro YAMAMOTOKatsuhiko YOKOHAMA
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2019 Volume 98 Issue 7 Pages 165-170

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Abstract

Oxy-fuel IGCC is developed as a CO2 recovery type power generation system with high thermal efficiency. In order to verify O2/CO2 blown gasification process applied to the oxy-fuel IGCC, O2/CO2 blown gasification tests were conducted with a coal throughput of 50 tons per one day (50 t/d) scale for the first time. It was confirmed that slag discaharging characteristics was smooth and that the gasifier can be operated stably under O2/CO2 blown conditons. As a result of measurement of major syngas components, it was shown that the performance of 50 t/d gasifier can be predicted by existing simulation method. Hydrocarbon measurement in the syngas was carried out in O2/CO2 blown gasification, and it was suggested that the amout of hydrocarbon can be adjusted by tuning the operating parameters. Furthermore, applicability to a commercial scale oxy-fuel IGCC system was examined by applying the simulation confirmed in the gasification test.

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© 2019 The Japan Institute of Energy
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